{% extends "base.html" %}
{% block content %}
  <h1 class="page-title">Dashboard</h1>

  <div class="row mt-4">
    <div class="col-12">
      <div class="card card-elevated">
        <div class="card-header d-flex justify-content-between align-items-center">
          <h2 class="h5 mb-0">Playlists</h2>
          <form method="post" action="{{ url_for('company.create_playlist') }}" class="d-flex gap-2">
            <input class="form-control" name="name" placeholder="New playlist name" required />
            <button class="btn btn-brand" type="submit">Add</button>
          </form>
        </div>
        <div class="table-responsive">
          <table class="table table-hover mb-0">
            <thead>
              <tr>
                <th>Name</th>
                <th class="text-end">Items</th>
                <th class="text-end">Actions</th>
              </tr>
            </thead>
            <tbody>
              {% for p in playlists %}
                <tr>
                  <td>
                    <strong>{{ p.name }}</strong>
                    {# Indicators: schedule + priority #}
                    {% set has_schedule = (p.schedule_start is not none) or (p.schedule_end is not none) %}
                    {% if has_schedule %}
                      {% set is_active = (not p.schedule_start or p.schedule_start <= now_utc) and (not p.schedule_end or now_utc <= p.schedule_end) %}
                      <span class="ms-2" title="Scheduled playlist" style="font-weight:700;">📅</span>
                      <span
                        class="ms-1 schedule-status-dot {{ 'active' if is_active else 'inactive' }}"
                        title="{{ 'Schedule active' if is_active else 'Schedule inactive' }}"
                      ></span>
                    {% endif %}
                    {% if p.is_priority %}
                      <span class="ms-1" title="Priority playlist" style="color:#dc3545; font-weight:700;">❗</span>
                    {% endif %}
                  </td>
                  <td class="text-end">{{ p.items|length }}</td>
                  <td class="text-end">
                    <div class="d-inline-flex gap-2">
                      <a class="btn btn-ink btn-sm" href="{{ url_for('company.playlist_detail', playlist_id=p.id) }}">Open</a>
                    </div>
                  </td>
                </tr>
              {% else %}
                <tr>
                  <td colspan="3" class="text-muted">No playlists yet.</td>
                </tr>
              {% endfor %}
            </tbody>
          </table>
        </div>
      </div>
    </div>

    <div class="col-12 mt-4">
      <div class="card card-elevated">
        <div class="card-header">
          <h2 class="h5 mb-0">Displays</h2>
        </div>
        <div class="card-body">
          <div class="row g-3">
            {% for d in displays %}
              <div class="col-12 col-md-6 col-xl-4">
                <div class="card display-gallery-card h-100">
                  <div class="display-preview">
                    <div
                      class="display-preview-scale"
                      style="width: 1000%; height: 1000%; transform: scale(0.1); transform-origin: top left;"
                    >
                      <iframe
                        title="Preview — {{ d.name }}"
                        data-display-id="{{ d.id }}"
                        class="js-display-preview"
                        data-preview-src="{{ url_for('display.display_player', token=d.token) }}?preview=1"
                        loading="lazy"
                        referrerpolicy="no-referrer"
                        style="width: 100%; height: 100%; border: 0;"
                      ></iframe>
                    </div>
                  </div>

                  <div class="card-body d-flex flex-column gap-2">
                    <div>
                      <div class="fw-bold">{{ d.name }}</div>
                      <div class="text-muted small js-display-desc" data-display-id="{{ d.id }}">
                        {{ d.description or "—" }}
                      </div>
                    </div>

                    <div class="d-flex flex-column gap-2 mt-auto">
                      {# Multi-playlist selector: button opens modal with playlist checkboxes #}
                      <div class="d-flex gap-2 align-items-center">
                        <button
                          type="button"
                          class="btn btn-ink btn-sm js-edit-playlists"
                          data-display-id="{{ d.id }}"
                          data-display-name="{{ d.name }}"
                          data-current-desc="{{ d.description or '' }}"
                          data-current-transition="{{ d.transition or 'none' }}"
                          data-current-show-overlay="{{ '1' if d.show_overlay else '0' }}"
                          data-current-ticker-enabled="{{ '1' if d.ticker_enabled else '0' }}"
                          data-legacy-playlist-id="{{ d.assigned_playlist_id or '' }}"
                          data-active-playlist-ids="{{ d.display_playlists | map(attribute='playlist_id') | list | join(',') }}"
                        >
                          Configure display
                        </button>
                        <div class="small text-muted">
                          <span class="js-active-playlists-summary" data-display-id="{{ d.id }}">—</span>
                        </div>
                      </div>
                    </div>
                  </div>
                </div>
              </div>
            {% else %}
              <div class="col-12">
                <div class="text-muted">No displays. Ask admin to add displays.</div>
              </div>
            {% endfor %}
          </div>
        </div>
      </div>
    </div>
  </div>

  <!-- Toast notifications -->
  <div class="toast-container position-fixed bottom-0 end-0 p-3" style="z-index: 1080">
    <div id="companyToast" class="toast" role="alert" aria-live="polite" aria-atomic="true">
      <div class="toast-body" id="companyToastBody">Saved</div>
    </div>
  </div>

  <!-- Edit playlists modal -->
  <div class="modal fade" id="editPlaylistsModal" tabindex="-1" aria-hidden="true">
    <div class="modal-dialog modal-dialog-scrollable">
      <div class="modal-content">
        <div class="modal-header">
          <h5 class="modal-title" id="editPlaylistsModalTitle">Configure display</h5>
          <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
        </div>
        <div class="modal-body">
          <div class="mb-3">
            <label class="form-label" for="editPlaylistsDescInput">Description</label>
            <textarea
              class="form-control"
              id="editPlaylistsDescInput"
              maxlength="200"
              rows="3"
              placeholder="Optional description (max 200 chars)"
            ></textarea>
            <div class="form-text"><span id="editPlaylistsDescCount">0</span>/200</div>
          </div>

          <div class="mb-3">
            <label class="form-label" for="editPlaylistsTransitionSelect">Slide transition</label>
            <select class="form-select" id="editPlaylistsTransitionSelect">
              <option value="none">None</option>
              <option value="fade">Fade</option>
              <option value="slide">Slide</option>
            </select>
            <div class="form-text">Applied on the display when switching between playlist items.</div>
          </div>

          <div class="form-check mb-3">
            <input class="form-check-input" type="checkbox" id="editPlaylistsShowOverlayCheck" />
            <label class="form-check-label" for="editPlaylistsShowOverlayCheck">Show company overlay</label>
            <div class="form-text">If your company has an overlay uploaded, it will be displayed on top of the content.</div>
          </div>

          <div class="form-check form-switch mb-2">
            <input class="form-check-input" type="checkbox" id="editTickerEnabled" />
            <label class="form-check-label" for="editTickerEnabled">
              Enable ticker tape on this display
            </label>
            <div class="form-text">
              RSS feed + styling is configured in <a href="{{ url_for('company.my_company') }}">My Company</a>.
            </div>
          </div>
          <hr class="my-3" />
          <div class="text-muted small mb-2">Tick the playlists that should be active on this display.</div>
          <div id="editPlaylistsList" class="d-flex flex-column gap-2"></div>
          <div class="form-text mt-2" id="editPlaylistsHint"></div>
        </div>
        <div class="modal-footer">
          <button type="button" class="btn btn-outline-secondary" data-bs-dismiss="modal">Cancel</button>
          <button type="button" class="btn btn-brand" id="editPlaylistsSaveBtn">Save</button>
        </div>
      </div>
    </div>
  </div>

  {# Embed playlists list as JSON to avoid templating inside JS (keeps JS linters happy). #}
  <script type="application/json" id="allPlaylistsJson">{{ playlists_json|tojson }}</script>
{% endblock %}

{% block page_scripts %}
  <script>
    (function () {
      let ALL_PLAYLISTS = [];
      try {
        const el = document.getElementById('allPlaylistsJson');
        ALL_PLAYLISTS = el ? JSON.parse(el.textContent || '[]') : [];
      } catch (e) {
        ALL_PLAYLISTS = [];
      }

      const toastEl = document.getElementById('companyToast');
      const toastBodyEl = document.getElementById('companyToastBody');
      const toast = toastEl ? new bootstrap.Toast(toastEl, { delay: 2200 }) : null;

      function showToast(message, variant) {
        if (!toast || !toastEl || !toastBodyEl) return;
        toastEl.classList.remove('text-bg-success', 'text-bg-danger', 'text-bg-secondary');
        if (variant) toastEl.classList.add(variant);
        toastBodyEl.textContent = message;
        toast.show();
      }

      async function postDisplayUpdate(displayId, payload) {
        const res = await fetch(`/company/displays/${displayId}` , {
          method: 'POST',
          headers: {
            'Content-Type': 'application/json',
            'Accept': 'application/json',
            'X-Requested-With': 'XMLHttpRequest'
          },
          body: JSON.stringify(payload)
        });
        const data = await res.json().catch(() => null);
        if (!res.ok || !data || !data.ok) {
          const msg = (data && data.error) ? data.error : 'Save failed';
          throw new Error(msg);
        }
        return data.display;
      }

      function refreshPreviewIframe(displayId) {
        const iframe = document.querySelector(`iframe[data-display-id="${displayId}"]`);
        // Previews are disabled on mobile.
        if (window.matchMedia && window.matchMedia('(max-width: 768px)').matches) return;
        if (!iframe) return;
        try {
          const baseSrc = iframe.dataset.previewSrc || iframe.src;
          if (!baseSrc) return;
          const u = new URL(baseSrc, window.location.origin);
          // Ensure preview flag is present (and bust cache).
          u.searchParams.set('preview', '1');
          u.searchParams.set('_ts', String(Date.now()));
          iframe.src = u.toString();
        } catch (e) {
          // Fallback: naive cache buster
          const baseSrc = iframe.dataset.previewSrc || iframe.src;
          if (!baseSrc) return;
          const sep = baseSrc.includes('?') ? '&' : '?';
          iframe.src = `${baseSrc}${sep}_ts=${Date.now()}`;
        }
      }

      function parseIds(csv) {
        const s = (csv || '').trim();
        if (!s) return [];
        return s.split(',').map(x => parseInt(x, 10)).filter(n => Number.isFinite(n));
      }

      function computeActiveIdsFromDataset(btn) {
        // If display_playlist table has rows, we use that.
        // Otherwise fall back to legacy single playlist assignment.
        const active = parseIds(btn.dataset.activePlaylistIds);
        if (active.length) return active;
        const legacy = parseInt(btn.dataset.legacyPlaylistId || '', 10);
        return Number.isFinite(legacy) ? [legacy] : [];
      }

      function setActiveIdsOnButton(btn, ids) {
        btn.dataset.activePlaylistIds = (ids || []).join(',');
      }

      function playlistNameById(id) {
        const p = (ALL_PLAYLISTS || []).find(x => x.id === id);
        return p ? p.name : null;
      }

      function refreshActivePlaylistSummary(displayId, ids) {
        const el = document.querySelector(`.js-active-playlists-summary[data-display-id="${displayId}"]`);
        if (!el) return;
        if (!ids || ids.length === 0) {
          el.textContent = '(none)';
          return;
        }
        const names = ids.map(playlistNameById).filter(Boolean);
        el.textContent = names.length ? names.join(', ') : `${ids.length} selected`;
      }

      // Initialize summary labels on page load.
      document.querySelectorAll('.js-edit-playlists').forEach((btn) => {
        const displayId = btn.dataset.displayId;
        const ids = computeActiveIdsFromDataset(btn);
        refreshActivePlaylistSummary(displayId, ids);
      });

      async function postDisplayPlaylists(displayId, playlistIds) {
        const res = await fetch(`/company/displays/${displayId}/playlists`, {
          method: 'POST',
          headers: {
            'Content-Type': 'application/json',
            'Accept': 'application/json',
            'X-Requested-With': 'XMLHttpRequest'
          },
          body: JSON.stringify({ playlist_ids: playlistIds })
        });
        const data = await res.json().catch(() => null);
        if (!res.ok || !data || !data.ok) {
          const msg = (data && data.error) ? data.error : 'Save failed';
          throw new Error(msg);
        }
        return data.display;
      }

      // Playlists modal
      const plModalEl = document.getElementById('editPlaylistsModal');
      const plModal = plModalEl ? new bootstrap.Modal(plModalEl) : null;
      const plTitleEl = document.getElementById('editPlaylistsModalTitle');
      const plListEl = document.getElementById('editPlaylistsList');
      const plHintEl = document.getElementById('editPlaylistsHint');
      const plSaveBtn = document.getElementById('editPlaylistsSaveBtn');
      const plDescInputEl = document.getElementById('editPlaylistsDescInput');
      const plDescCountEl = document.getElementById('editPlaylistsDescCount');
      const plTransitionEl = document.getElementById('editPlaylistsTransitionSelect');
      const plShowOverlayEl = document.getElementById('editPlaylistsShowOverlayCheck');
      const tickerEnabledEl = document.getElementById('editTickerEnabled');
      let activePlDisplayId = null;
      let activePlButton = null;

      function updatePlDescCount() {
        if (!plDescInputEl || !plDescCountEl) return;
        plDescCountEl.textContent = String((plDescInputEl.value || '').length);
      }
      if (plDescInputEl) plDescInputEl.addEventListener('input', updatePlDescCount);

      function renderPlaylistCheckboxes(selectedIds) {
        if (!plListEl) return;
        plListEl.innerHTML = '';
        const selectedSet = new Set(selectedIds || []);
        const pls = (ALL_PLAYLISTS || []).slice().sort((a,b) => (a.name || '').localeCompare(b.name || ''));
        if (pls.length === 0) {
          plListEl.innerHTML = '<div class="text-muted">No playlists available.</div>';
          return;
        }

        pls.forEach((p) => {
          const id = `pl_cb_${p.id}`;
          const row = document.createElement('div');
          row.className = 'form-check';

          const input = document.createElement('input');
          input.className = 'form-check-input';
          input.type = 'checkbox';
          input.id = id;
          input.value = String(p.id);
          input.checked = selectedSet.has(p.id);

          const label = document.createElement('label');
          label.className = 'form-check-label';
          label.setAttribute('for', id);
          label.textContent = p.name;

          row.appendChild(input);
          row.appendChild(label);
          plListEl.appendChild(row);
        });
      }

      function getSelectedPlaylistIdsFromModal() {
        if (!plListEl) return [];
        return Array.from(plListEl.querySelectorAll('input[type="checkbox"]'))
          .filter(cb => cb.checked)
          .map(cb => parseInt(cb.value, 10))
          .filter(n => Number.isFinite(n));
      }

      document.querySelectorAll('.js-edit-playlists').forEach((btn) => {
        btn.addEventListener('click', () => {
          activePlDisplayId = btn.dataset.displayId;
          activePlButton = btn;
          const displayName = btn.dataset.displayName || 'Display';
          if (plTitleEl) plTitleEl.textContent = `Configure display — ${displayName}`;

          const currentDesc = btn.dataset.currentDesc || '';
          if (plDescInputEl) plDescInputEl.value = currentDesc;
          updatePlDescCount();

          const currentTransition = (btn.dataset.currentTransition || 'none').toLowerCase();
          if (plTransitionEl) plTransitionEl.value = ['none','fade','slide'].includes(currentTransition) ? currentTransition : 'none';

          if (plShowOverlayEl) {
            const raw = (btn.dataset.currentShowOverlay || '').toLowerCase();
            plShowOverlayEl.checked = raw === '1' || raw === 'true' || raw === 'yes' || raw === 'on';
          }

          if (tickerEnabledEl) {
            const raw = (btn.dataset.currentTickerEnabled || '').toLowerCase();
            tickerEnabledEl.checked = raw === '1' || raw === 'true' || raw === 'yes' || raw === 'on';
          }

          const selected = computeActiveIdsFromDataset(btn);
          renderPlaylistCheckboxes(selected);
          if (plHintEl) {
            plHintEl.textContent = selected.length ? `${selected.length} currently selected.` : 'No playlists currently selected.';
          }
          if (plModal) plModal.show();
        });
      });

      async function savePlaylists() {
        if (!activePlDisplayId || !activePlButton || !plSaveBtn) return;
        const ids = getSelectedPlaylistIdsFromModal();
        const desc = plDescInputEl ? (plDescInputEl.value || '').trim() : '';
        const transition = plTransitionEl ? (plTransitionEl.value || 'none') : 'none';
        const showOverlay = plShowOverlayEl ? !!plShowOverlayEl.checked : false;
        const tickerEnabled = tickerEnabledEl ? !!tickerEnabledEl.checked : false;
        plSaveBtn.disabled = true;
        try {
          const [updatedPlaylists, updatedDesc] = await Promise.all([
            postDisplayPlaylists(activePlDisplayId, ids),
            postDisplayUpdate(activePlDisplayId, {
              description: desc,
              transition,
              show_overlay: showOverlay,
              ticker_enabled: tickerEnabled
            })
          ]);

          const newIds = (updatedPlaylists && updatedPlaylists.active_playlist_ids)
            ? updatedPlaylists.active_playlist_ids
            : ids;
          setActiveIdsOnButton(activePlButton, newIds);
          refreshActivePlaylistSummary(activePlDisplayId, newIds);

          const descEl = document.querySelector(`.js-display-desc[data-display-id="${activePlDisplayId}"]`);
          const newDesc = updatedDesc && typeof updatedDesc.description === 'string' ? updatedDesc.description : desc;
          if (descEl) descEl.textContent = newDesc ? newDesc : '—';
          activePlButton.dataset.currentDesc = newDesc || '';

          // Keep button dataset in sync so reopening modal shows correct value.
          const newTransition = updatedDesc && typeof updatedDesc.transition === 'string' ? updatedDesc.transition : transition;
          activePlButton.dataset.currentTransition = newTransition || 'none';

          const newShowOverlay = updatedDesc && typeof updatedDesc.show_overlay !== 'undefined'
            ? !!updatedDesc.show_overlay
            : showOverlay;
          activePlButton.dataset.currentShowOverlay = newShowOverlay ? '1' : '0';

          const newTickerEnabled = updatedDesc && typeof updatedDesc.ticker_enabled !== 'undefined'
            ? !!updatedDesc.ticker_enabled
            : tickerEnabled;
          activePlButton.dataset.currentTickerEnabled = newTickerEnabled ? '1' : '0';

          showToast('Display updated', 'text-bg-success');
          refreshPreviewIframe(activePlDisplayId);
          if (plModal) plModal.hide();
        } catch (e) {
          showToast(e && e.message ? e.message : 'Save failed', 'text-bg-danger');
        } finally {
          plSaveBtn.disabled = false;
        }
      }

      if (plSaveBtn) {
        plSaveBtn.addEventListener('click', savePlaylists);
      }

      // Disable dashboard previews on small screens (mobile): don't even set iframe src.
      function loadDashboardPreviewsIfDesktop() {
        const isMobile = window.matchMedia && window.matchMedia('(max-width: 768px)').matches;
        if (isMobile) return;
        document.querySelectorAll('iframe.js-display-preview[data-preview-src]').forEach((iframe) => {
          if (!iframe.src || iframe.src === 'about:blank') {
            iframe.src = iframe.dataset.previewSrc;
          }
        });
      }
      loadDashboardPreviewsIfDesktop();

      // If user rotates/resizes from mobile -> desktop, load previews then.
      if (window.matchMedia) {
        const mql = window.matchMedia('(max-width: 768px)');
        const onChange = () => {
          if (!mql.matches) loadDashboardPreviewsIfDesktop();
        };
        if (typeof mql.addEventListener === 'function') {
          mql.addEventListener('change', onChange);
        } else if (typeof mql.addListener === 'function') {
          mql.addListener(onChange);
        }
      }
    })();
  </script>
{% endblock %}